RIDGID 31015 Model 12 Heavy-Duty Straight Pipe Wrench, 12-inch Plumbing Wrench Durable ductile-iron housing and I-beam handle for exceptional strength and longevity Designed with a full floating forged hook jaw for superior gripping and quick adjustments Plumbing wrench features self-cleaning threads with easily replaceable hook jaw, heel jaw and spring assembly Heavy-duty RIDGID pipe wrenches comply with federal specifications GGG-W65IE, Type ll, Class A 12-inch (300 mm) pipe wrenches are ideal for pipe diameters of 1/2 inch (13 mm) to 1-1/2 inch (40 mm) with a pipe capacity of up to 2 inches (50 mm)